Azo compounds containing acylating function and azo containing polymers
US4101522A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1976 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Feb 25, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F299/0457
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A. A novel class of azo compounds R-N.dbd.N-R.sub.1 where R and/or R.sub.1 are groups containing an acylating function, e.g., acyl chloride, chloroformate or anhydride. Example: Cis-4,4'-Azobis-(4-cyanovaleryl chloride). B. a novel class of azo containing polymers EQU (R'--N.dbd.N--C(R.sub.2)(R.sub.2 ') --R.sub.2 "--Y).sub.m --E--(Z).sub.n PA1 wherein R' is t-aliphatic, formed by reacting a polymer having at least one group reactive with an acyl group and a compound as in "A" containing only one acylating function. Example: the reaction product of 4-t-butylazo-4-cyanovaleryl chloride and hydroxyl terminated polybutadiene liquid resin. C. a novel class of azo containing polymers EQU Z(E--Y--R.sub.2 "--C(R.sub.2)(R.sub.2 ')--N.dbd.N--C(R.sub.2)(R.sub.2 ')--R.sub.2 "--Y).sub.m' --E--Z, formed by the reaction of a compound as in "A" having two acylating functions with (1) a monomer having two acyl-reactive groups and a monomer having two acylating functions, or (2) a polymer having at least one acyl-reactive group. D. polymers B and C are useful in the production of block and graft polymers and in curing unsaturated polyester resin-vinyl monomer systems. Polymer C forms block and graft…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.